Re: The theory that Ms Huang is a Gemma clone, that would mean she's just a younger Gemma, and while people CAN look quite different as kids (especially in TV land) ... ... what I am finding unrealistic...
No wait I just solved this myself but I'll post it anyway. I was going to say, Mark S would know what Gemma looked like as a kid, from pictures etc. because who hasn't seen their spouse as a kid.
But then I realised that Outie Mark has never seen Ms Huang, and innie Mark S doesn't know sh1t .